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Volume 73, Issue 2

sp. nov., an actinobacterium isolated from the rhizosphere of a mangrove No Access

Abstract

A novel actinobacterium, designated HIs16-36, was isolated from the rhizosphere of a mangrove on Ishigaki Island, Okinawa, Japan, and its taxonomic position was investigated using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain HIs16-36 was closely related to the members of the genus . The highest 16S rRNA gene sequence similarity was observed with (98.5 %), followed by (97.2 %). The peptidoglycan of strain HIs16-36 was of the A4α type, with lysine as the diagnostic diamino acid. The predominant isoprenoid quinone was MK-9(H) and the major fatty acids were anteiso-C and iso-C. The polar lipids were identified as diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and two glycolipids. These chemotaxonomic features corresponded to those of the genus . Meanwhile, the differences in some phenotypic characteristics, along with the results of average nucleotide identity and digital DNA–DNA hybridization analyses, indicated that strain HIs16-36 should be distinguished from the recognized species of the genus . Therefore, strain HIs16-36 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is HIs16-36 (=NBRC 112813=TBRC 15750).

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  • Accepted:
  • Published Online:
Keyword(s): Arthrobacter mangrovi , mangrove , polyphasic taxonomy and rhizosphere
© 2023 The Authors
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2023-02-24
2024-05-07
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Arthrobacter mangrovi sp. nov., an actinobacterium isolated from the rhizosphere of a mangrove
Int J Syst Evol Microbiol 73, 005749 (2023); https://doi.org/10.1099/ijsem.0.005749
/content/journal/ijsem/10.1099/ijsem.0.005749
/content/journal/ijsem/10.1099/ijsem.0.005749
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